Entonces, si tienes un objeto `something` (que podría _no_ ser una función) y puedes "llamarlo" (ejecutarlo) como:

```Python
something()
```

o

```Python
something(some_argument, some_keyword_argument="foo")
```

entonces es un "callable".

## Clases como dependencias { #classes-as-dependencies_1 }

Puedes notar que para crear una instance de una clase en Python, utilizas esa misma sintaxis.

Por ejemplo:

          public String load(String key) throws InterruptedException {
            callCount.incrementAndGet();
            secondSignal.countDown();
            computeSignal.await();
            return key + "foo";
          }
        };

    LoadingCache<String, String> cache =
        CacheBuilder.newBuilder().weakKeys().build(computeFunction);

  }

  public void testMethod_declaredBySuperclass() throws Exception {
    Method toStringMethod = Object.class.getMethod("toString");
    ImmutableList<String> list = ImmutableList.of("foo");
    assertEquals(list.toString(), TypeToken.of(List.class).method(toStringMethod).invoke(list));
  }

  public <T extends Number & List<String>> void testMethod_returnType_resolvedAgainstTypeBound()

    assertThat(two).isNotSameInstanceAs(one);
    assertThat(loader.getCount()).isEqualTo(2);
  }

  public void testValues() {
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder());
    map.put("foo", "bar");
    map.put("baz", "bar");
    map.put("quux", "quux");
    assertThat(map.values() instanceof Set).isFalse();
    assertThat(map.values().removeAll(ImmutableSet.of("bar"))).isTrue();

    assertThat(two).isNotSameInstanceAs(one);
    assertThat(loader.getCount()).isEqualTo(2);
  }

  public void testValues() {
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder());
    map.put("foo", "bar");
    map.put("baz", "bar");
    map.put("quux", "quux");
    assertThat(map.values() instanceof Set).isFalse();
    assertThat(map.values().removeAll(ImmutableSet.of("bar"))).isTrue();

        }

        /**
         * Returns the programmatic name of this path type, including the module to patch.
         * For example, if this type was created by {@code JavaPathType.patchModule("foo.bar")},
         * then this method returns {@code "PathType[PATCH_MODULE:foo.bar]")}.
         *
         * @return the programmatic name together with the module name on which it applies
         */
        @Nonnull

 *   <li>Supports a copy-free {@link #subArray} view, so methods that accept this type don't need to
 *       add overloads that accept start and end indexes.
 *   <li>Can be streamed without "breaking the chain": {@code foo.getBarLongs().stream()...}.
 *   <li>Access to all collection-based utilities via {@link #asList} (though at the cost of
 *       allocating garbage).
 * </ul>
 *
 * <p>Disadvantages compared to {@code long[]}:
 *

* servicecontroller: Fix node selection logic on initial LB creation ([#45773](https://github.com/kubernetes/kubernetes/pull/45773), [@justinsb](https://github.com/justinsb))

* fixed HostAlias in PodSpec to allow foo.bar hostnames instead of just foo DNS labels. ([#46809](https://github.com/kubernetes/kubernetes/pull/46809), [@rickypai](https://github.com/rickypai))


#### Node controller
* Bug fixes:

   * ...
   * synchronized (multimap) { // Synchronizing on multimap, not values!
   *   Iterator<V> i = values.iterator(); // Must be in synchronized block
   *   while (i.hasNext()) {
   *     foo(i.next());
   *   }
   * }
   * }
   *
   * <p>Failure to follow this advice may result in non-deterministic behavior.
   *
   * <p>Note that the generated multimap's {@link Multimap#removeAll} and {@link

   * ...
   * synchronized (multimap) { // Synchronizing on multimap, not values!
   *   Iterator<V> i = values.iterator(); // Must be in synchronized block
   *   while (i.hasNext()) {
   *     foo(i.next());
   *   }
   * }
   * }
   *
   * <p>Failure to follow this advice may result in non-deterministic behavior.
   *
   * <p>Note that the generated multimap's {@link Multimap#removeAll} and {@link